Terror Behind the Walls, America’s largest haunted house, is located inside the massive castle-like walls of Eastern State Penitentiary in Philadelphia, PA. Now in its 21st year, Terror Behind the Walls is consistently ranked among the top 10 haunted attractions in the country. In 2012, Terror Behind the Walls runs on select evenings from September 21 through November 10.

Eastern State Penitentiary announces a major expansion to Terror Behind the Walls for 2012, the all-new Detritus. This new attraction, expanding the event into areas of the penitentiary never entered by the public, takes visitors through an original 1800s cellblock, past the historic prison greenhouse, and into an outdoor labyrinth of overgrown plants and twisting vines.

Also new for 2012, Terror Behind the Walls is adding to its VIP Experiences with an ALONE package. The ultimate Halloween experience, ALONE includes a reserved parking space and an expert tour guide who will be a personal host for the evening. After a “Behind the Scenes” tour of the penitentiary, the visitor will experience all six haunted attractions of Terror Behind the Walls completely ALONE, see the Costume and Makeup departments, and enjoy a 3-course dinner at Jack’s Firehouse. This exclusive experience is only offered once per evening.

Buy Online and SAVE!

Tickets are cheaper if you purchase them online. Also save $3 off Terror Behind the Walls tickets with Discount/Promo Code “PHILLYMOM” when purchased online at easternstate.org/buynow. Tickets are $40 onsite (Plus $1.75 Service Fee). Code is not valid at the box office and on Saturdays in October or November 10th.

Family Nights are Every Sunday night until 9 pm. Terror Behind the Walls is a great event for older kids (and of course for fright-loving adults!), but we recommend that kids ages 7 to 12 visit on our Family Nights. On these nights, kids can say “Monster Be Good!,” and they will! Plus, half price kids’ tickets are available until 9 pm every Sunday night!

Please Note: Discounted kids’ tickets are available only on Family Nights. There are no kids’ discounts on other show nights.

Student Sunday are Every Sunday Night after 8 pm. Students of all ages get half-priced tickets every Sunday night after 8 pm. This offer is valid for tickets purchased online only. No combination of discounts. College students must present a valid student ID upon entry.

Terror Behind the Walls is located inside Eastern State Penitentiary Historic Site at 22nd Street and Fairmount Avenue in Philadelphia, PA. Advanced ticket sales for Terror Behind the Walls begin on September 18, 2012. For more information, the public can visit the penitentiary’s website at terrorbehindthewalls.com or call (888) 763-NITE.

Disclosure / Disclaimer: I received a complimentary product for the purposes of this post. This post reflects my personal experience and opinion, which may differ from yours. No monetary compensation was provided for this post.